Detecting manipulated facial images and videos is an increasingly important topic in digital media forensics. As advanced face synthesis manipulation methods are made available, new types of fake representations being created which have raised significant concerns for their use social media. Hence, it crucial to detect localize regions. Instead simply using multi-task learning simultaneously predict the mask (regions), we propose utilize attention mechanism process improve feature maps...

In this study, austenitic stainless steel (ASS) was additively fabricated by an arc-based direct energy deposition (DED) technique. Macrostructure, microstructure, mechanical characteristics at different spatial orientations (0°, 90°, and 45°), wear were evaluated the deposited structure top, middle, bottom regions. The results show that austenite (γ) delta-ferrite (δ) phases make up most of microstructure SS316LSi steel. Within γ matrix, δ phase is dispersed both (within along) grain...

In this paper we present some new algorithms useful for extrapolation and spectral estimation of band-limited sequences in one two dimensions. First show that many the existing noiseless observations are unified under criterion minimum norm least squares (MNLS) extrapolation. For example, iterative proposed [2] [8]-[10] shown to be special cases a one-step gradient algorithm which has linear convergence. Convergence other numerical properties improved by going conjugate algorithm. noisy...

Surface roughness prediction studies in fused deposition modeling (FDM) process are usually based on a perimeter profile of each deposited layer. This study categorizes three types build edge composed perimeter, raster, and combination both layer patterns, which have been considered to reduce the predictive error models. Furthermore, an innovative approach theoretical empirical methods is used analyze predict randomness geometry profiles. The same methodology model surface behaviors....

Polymer-layered silicate (PLS) nanocomposites exhibit enhanced mechanical and thermal properties when compared with pristine polymers macrocomposites. Utilizing the benefits of PLS nanocomposite in fused deposition modelling (FDM) process is great significance. It could assist to overcome limitations imposed by availability materials FDM process; need widen range critical order fabricate parts improved properties. Experimental investigations were carried out on development processing for...

AbstractBead geometry plays a significant role in the fabrication of artefacts via wire arc additive manufacturing (WAAM) route especially with respect to dimensional characteristics, surface properties, and part density. It also substantially affects material penetration, accuracy, thickness subsequent layers. The present study focuses on effect processing parameters single-bead for fabricating 316LSi stainless steel pulsed-mode metal transfer WAAM. Models were developed by utilizing...

Banded Toeplitz matrices of large size occur in many practical problems [1]-[6]. Here the problem inversion as well solving simultaneous equations type Hx = y, when H is a banded matrix, are considered. It shown via certain circular decompositions that such may be exactly solved <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">O(N \log_{2} N)</tex> rather than O(N <sup xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> ) computations...